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Cisco Certified Specialist - Data Center AI Infrastructure 300-640 DCAI

100 real Cisco 300-640 DCAI questions with answers checked by certified engineers. Start free, upgrade when you are ready.

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Questions
100
Exam code
300-640 DCAI
Last updated
Sep 23, 2026
Language
English
Certification
Cisco Certified Specialist - Data Center AI Infrastructure
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300-640 DCAI sample questions

2 questions from the 300-640 DCAI practice set, with the answer and explanation.

  1. Question 1
    Why do distributed AI training jobs generate heavy east-west traffic inside a data center?
    • A.
      Gradients or activations move between GPUs in many servers each step
    • B.
      Users download large model files from the internet during every inference request
    • C.
      Storage backups run continuously between the web servers and the internet edge
    • D.
      Management traffic from the administrative console consumes most of the bandwidth
    Show answer

    Correct answer:

    • A.
      Gradients or activations move between GPUs in many servers each step

    Explanation

    Data-parallel and model-parallel training synchronize gradients or activations across GPUs in many servers, which creates heavy server-to-server traffic. Downloads from users are north-south flows and are a different pattern, which makes the download option the most tempting confusion. Management traffic is small by comparison.
  2. Question 2
    Training workloads are usually limited by sustained compute and communication between GPUs, while inference is usually judged by latency and throughput per request.
    • A.
      True
    • B.
      False
    Show answer

    Correct answer:

    • A.
      True

    Explanation

    Training runs long iterative jobs that depend on synchronized communication, whereas inference serves individual requests where response time and throughput per accelerator matter most. Designs for the two often differ in network and scheduling choices. The statement is True.
Exam detail

About Cisco 300-640 DCAI

Related Practice Questions

We help aspirants prepare for the Cisco certification exam without spending money on preparation materials. Many candidates download the 300-640 DCAI Cisco Certified Specialist - Data Center AI Infrastructure practice questions PDF here. You can easily download Cisco 300-640 DCAI PDF practice questions for free. If you have any questions about the exam product, you can view the comments. You can also publish comments about 300-640 DCAI exam questions in PDF format.
FAQ

300-640 DCAI FAQ

What is the Cisco 300-640 DCAI exam?

300-640 DCAI is the Cisco Certified Specialist - Data Center AI Infrastructure exam. The exam runs for 90 minutes.

How many questions are in the 300-640 DCAI practice set?

The full 300-640 DCAI practice set has 100 questions with answers.

Can I try 300-640 DCAI practice questions for free?

Yes. This page has 2 free 300-640 DCAI PDF files shared by other candidates, and a free online test engine where you can answer 300-640 DCAI questions in your browser. No account is needed.

What formats are the 300-640 DCAI practice questions available in?

300-640 DCAI practice questions are available in these formats: PDF and Online Practice Exam. You can also get them together in a bundle.

How much does 300-640 DCAI practice material cost?

300-640 DCAI practice material starts from $49 USD.

Are these the actual 300-640 DCAI exam questions?

No. They are exam-style practice questions written from the official 300-640 DCAI exam objectives, not actual exam content.

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